Way to make the police system work (in theory):
If the wanted level is 0, you are not allowed to bust/kill anyone [boring].
If the wanted level is 1, you are allowed to bust the person or whack them [chasing].
If the wanted level is 2 or over, you are allowed to kill the person [action].
And the mode choosed, who to bust, can be selected: team [massacre] or individual persons [vigilante].